Home / 91,622.08-137,484.60-49,501.36

Finding the Fourth Proportional to 91,622.08, 137,484.60 and 49,501.36

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Solution

The fourth proportional to 91,622.08, 137,484.60 and 49,501.36 is: 74,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,622.08 : 137,484.60 = 49,501.36 : x
  2. Step 2: Convert to fraction form
    91,622.08/137,484.60 = 49,501.36/x
  3. Step 3: Cross multiply
    91,622.08x = 137,484.60 × 49,501.36
  4. Step 4: Simplify right side
    91,622.08x = 6,805,674,679.06
  5. Step 5: Solve for x
    x = 6,805,674,679.06/91,622.08
  6. Step 6: Final answer
    x = 74,279.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.